Missing 'skin.json' file?

[nelson6e65]

I installed via composer, but when I add wfLoadSkin('booty'); to LocalSettings.php I get this error:

Fatal error: Uncaught exception 'Exception' with message '/var/www/html/wiki-raw/skins/booty/skin.json does not exist!' in /var/www/html/wiki-raw/includes/registration/ExtensionRegistry.php on line 101

How can I use this skin in my MW?

[kaiall]

You need to use the old method:
require_once "$IP/skins/Booty/Booty.php";